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In a tightly sealed container, preferably one that doesn't have a lot of moisture in the air. The container should be a plastic container as glass container can react with sodium hydroxide and melt.
It reacts with oxygen in air to form sodium oxide (Na2O) and some sodium peroxide (Na2O2) and reacts with nitrogen to form some sodium nitride (Na3N).
Sodium is easily oxidised, contact with the air will form a thin layer of Sodium Oxide over its surface, which would be considered an impurity.
4Na + O2 ----> 2Na2O Sodium oxide is formed.
While I don't use metallic sodium often, I believe if you take it into the air it will form a white film over the surface and that agrees with my hazy memory of it. In dry air, you'll get a sodium monoxide film, which is white. In humid air, you may get sodium hydroxide...or a bit of both. Sodium hydroxide is also white. So fair to say, you'll get a white surface. Note that with solid sodium, only the very outer layer is this colour. The inner sides will remain intact as elemental sodium.
because it got a mixted chemical
Sodium is not placed in air because it is highly reactive and in the air it reacts with air very violently with the oxygen and burns with explosion. Hence it is always kept inside kerosene
The air inside shrinks its space needed.
On a 1997 Ford Ranger : The Mass Air Flow sensor is INSIDE the round plastic housing between the engine air filter ( cone shaped ) and the big rubber engine air intake tube ( you will see where the wires go inside the plastic housing )
No, not advisable.
The intake air temperature sensor is inside the main plastic housing of the air intake box where the air filter resides.
If it's not different than my 92' then it's inside the air flow meter. I belive it to be a little white plastic appendage inside the inlet.
The engine air filter is in the engine compartment , on the passenger side front corner , inside the plastic housing
Check plastic ducting next to rad-usually inside.
Should be some plastic ducting routed alongside radiator-look inside.
Yes because less air reacts inside.
Sodium is flammable in air.